Dynamic Navigation Route Selection Using Device and Node Signatures
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Solution Overview
Problem
Current navigation technologies are limited in dynamically modifying routes on a micro level, particularly within confined areas, and do not adequately account for the specific needs and characteristics of users, such as accessibility requirements for individuals with disabilities, by only considering macro-level changes like traffic and obstacles.
Innovation Solution
A computer system and method that models points of interest as nodes in a graph, assigns signatures to these nodes, and dynamically creates navigation routes based on both node and device signatures, allowing for real-time optimization and control of hardware components along the route to accommodate user needs, such as accessibility and sensor data from mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional navigation tools are used that only consider macro-level factors like traffic and obstacles, then route selection is simple and fast, but the navigation cannot adapt to micro-level user needs and accessibility requirements
Solution Approach 1:
The patent segments the navigation system into multiple independent components: device signature extraction module, node signature extraction module, routing module, and hardware control module. Each component performs a specific function, allowing the system to handle complex user-specific adaptations through modular processing rather than a monolithic complex system
Solution Approach 2:
The patent changes the parameters used for route selection from traditional macro-level factors only to include both device signatures (sensor capabilities, form factor) and node signatures (accessibility features, points of interest). This parameter expansion enables the system to adapt to micro-level user needs while maintaining the same underlying routing algorithm structure
2Adaptability or versatility
If navigation systems collect and process detailed device and node signatures for personalized routing, then user-specific accessibility and preferences are accommodated, but data processing time and computational resources increase
Solution Approach 1:
The patent extracts device signatures and node signatures in advance before route calculation. Device signatures characterize mobile device attributes (sensors, form factor) and node signatures characterize location attributes (accessibility features, POIs). This preliminary characterization allows the routing module to quickly match pre-computed signatures without performing complex analysis during real-time route calculation
Solution Approach 2:
The patent creates signature representations (copies) of device and node characteristics that can be quickly compared and matched. Instead of analyzing full device specifications and location details during routing, the system uses condensed signature copies that capture essential features, enabling fast comparison and route optimization based on user needs
3Reliability
If real-time monitoring and control of hardware components along the route is implemented, then navigation accuracy and user experience are improved, but system resource consumption and complexity increase
Solution Approach 1:
The patent implements a feedback mechanism where the routing module continuously monitors navigation progress and compares actual position with the planned route. Based on this feedback, the system can dynamically adjust the route by re-evaluating device and node signatures along alternative paths, ensuring continued alignment with user-specific requirements while maintaining manageable system complexity through event-driven updates
Data Source
AI summary
Embodiments of the invention relate to selecting a path for navigation based on a node signature and a device signature. The node signature is directly related to node attribute data. The device signature is directly related to device data. A route is selected based on a match or near match of the node and device signatures.